Once you enter 12th grade, you’re going to be in the final stretch of high school and very close to adulthood. Most pressingly, your Post secondary plans start to become more solid and the college application process is about to begin, which means you are going to be very busy, particularly during the fall semester. There’s a lot that you need to do as you start 12th grade in order to ensure a smooth college application process and transition into adulthood.